In Colombia, the government and FARC rebels have signed the historic peace deal during a ceremony in the coastal city of Cartagena Monday. The signing is the latest step in the efforts to end one of the world’s longest conflicts. It began in 1964 and has claimed some 220,000 lives. More than 5 million people are estimated to have been displaced. On Sunday, Colombians will vote in a nationwide referendum over whether to ratify the peace deal.